Home / 87,951.52-131,926.21-21,391.73

Finding the Fourth Proportional to 87,951.52, 131,926.21 and 21,391.73

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Solution

The fourth proportional to 87,951.52, 131,926.21 and 21,391.73 is: 32,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951.52 : 131,926.21 = 21,391.73 : x
  2. Step 2: Convert to fraction form
    87,951.52/131,926.21 = 21,391.73/x
  3. Step 3: Cross multiply
    87,951.52x = 131,926.21 × 21,391.73
  4. Step 4: Simplify right side
    87,951.52x = 2,822,129,204.61
  5. Step 5: Solve for x
    x = 2,822,129,204.61/87,951.52
  6. Step 6: Final answer
    x = 32,087.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.